Improvement in molds for making cushioned belting



No. 114,371. PATENTED MAY 2, 1871.

s. W. TYLER. V MOLD FOR MAKING GUSHIONED BBLTING.

2 SHEETS-31531 1 xazzw PATENTED MAY 2, 1871. S. W. TYLER.

MOLD FOR MAKING CUSHIONED BELTING.

' 2 SHEETS-SHEET 2.

ii um SAMUEL W. TYLER, OF TROY, NEW YORK.

Letters Patent No. 114,371, dated May 2, 1871; antedated April 27, 1871.

IMPROVEMENT IN MOLDS FOR MAKINGfC USHIONED BELTING.

The Schedule referred to in these Letters Patent and making part of thepame.

To all whom it may concern:

Be it known that I, SAMUEL W. TYLER, of Troy, in the county ofltensselaer and State of New York, have invented a Mold for MakingCushioned Belting; and I do hereby declare that the following isa full,clear, and exactdescription thereof, reference being had to theaccompanying drawing making part of this specification, in which- Figure1, plate 1,.is a view of the top of the mold.

Figure 2, plate 1, is, a plan view of the mold, with its cap andexternal case removed.

Figure 3, plate 2, is a diametrical section through the mold adapt-edfor making concave-faced belting.

Figure 4, plate 2, is a. diametrical section through a mold for makingconvex-faced belting.

Figure 5, plate 2, is a cross-section through two pieces of cushionedbelting.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to a new mold which is adapted for themanufacture of belting having an elastic or yielding cushion formed onacomparativcly non-elastic foundation. Such belts are especially. usefulin flux-harvesters for extracting the flax from the ground, as describedin my Letters Patent of the United States numbered 62,090, and they arealso useful for other purposes. i

The. nature of my invention consists in a sectional mold adapted for theproduction ofcushioned belting, which mold is so constructed that itwill readily re.- ceive the material of which the belts are composed,mold the same, and allow the finished belts to be conveniently removedfrom it. as will be hereinafter explained.

To enable others skilled in the art to understand my invention, 1 willexplain its construction and operation. v

In the accompanying drawing- A and B represent, respectively, the topand bottonr sections of the mold. These sections are rings which axeconstructed with ears on their peripheries to re.- ceive clamping-bolts,a a, by which the several sections composing the mold are securedtogether.

reduce a convex belt, (I; or it may be of any other, shape desired. Thisring D is centered by an annular ledge, s, on the bottom mold-section B.

The inner ring 0 presents to the mold-chamber a plain snrface, and iscentered between the cap and bottom sections by rebates, c. a

Ring 0 is secured to the base-sectiomB by means of screws, which passthrough ears forr |\cd on this ring, but the ring D is not permanentlysecure d'to the said base-section.

I prefer to construct the ring 0 as shown in fig. '2, towit, of segmentshinged to the base-plateB at i. a.

By thus constructing this ring it can be cont-ractcd,-

as shown in dotted lines, fig. 2, for the purpose of allowing thematerial which constitutes the toundatidi! of the belt to be tightlystretchedaround the ring, andalso to allow a ready removal from thisring of the finished belt.

I do not confine myself, however, to the segmental ring 0, as thisring-O and. bottom section B may be constructed of one piece, or eachone may be constructed of onespiece and afterward bolted together.

The ducking, webbing, or other material which is to form the foundationof the belt is stuffed or prepared with rubber and stretched tightlyaround the ring 0, the sections A B having been previously removed.

The section B is then adjusted in its place and the mold stufled withrubber,'after which the mold is locked. up and the material subjected tothe wellknown vulcanizing process.

After this process the screws a a' are removed and the finished beltseparated from .the mold;

I do not confine myself to themanufacture of vulcanized rubber belts,.asbelts may be made in my mold of any suitable plastic material which willatiord an elastic surface or cushion.

Having described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. A sectional mold'adapted for the production or elastic cushionedbelting, constructed substantially as described;

2. The segmental inner ring section 0, in combi-' nation, withdetachable mold sections A B 1), substantially as and for the purposesdescribed.

3. The ring 0, secured to the base-section B, in combination with themovable sections A B 1), substantially as and for the purposesdescribed.

-Witnesses: SAMUEL W. TYLER.

R. T. CAMPBELL, -J.'N. CAMPBELL.

